Going from the standard 17s to the 18s pushes out the wheels at all four corners by 9mm

Going from the standard 17s to the 18 staggered set up pushes out the front wheels by 9mm but the REAR BY ONLY 3mm!!!

Going to the 19 staggered set up pushes out the front by 7mm and the REAR BY ONLY 3mm!!!

interesting stuff. given this I am really starting to think that a 235/50 17 or 235/45 18 square setup is best. Maybe 245 but the tire sizes will be a bit shorter. Yea the 235 is taller, but it should fill up the wheel wells better.